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Those are the fuses for the control transformer primary. One fuse remains, and the TX is a single-phase load, so it's still protected against overcurrent. If the transformer primary were to go to ground though, not so much. Not as scary as bypassing the incoming line fuses, but still entertaining...

I usually find a piece of copper just jammed in where the fuse goes. I once found one a piece of wire in one I knew the other tech did just a few days prior and called him about it. "I didn't have any fuses," was the response. Tell it to the judge when your on trial for negligible homicide.

"If you've eliminated all other possibilities whatever remains must be the truth."